A review of the functions of the church and growth of Korean churches illustrates that God has blessed Korean churches. The purpose of this thesis is to understand the biblical functions of the church and the relationship between these functions and church growth. This project explains the historical background of the Korean church for church growth and makes suggestions to prepare the Korean church for the 21st century. This thesis is based on conclusions drawn from an extensive published research on church growth and is illustrated by a scientific survey given to thirty-five Korean pastors.